Abstract
Lately, Greedy Forwarding Strategy (GFS) is express as a basic mechanistic in geographic routing for Mobile Ad Hoc Networks (MANETs). GFS employs the shortest path between two connected nodes. The research’s analysis of networks that using GFS indicates that some areas of the MANET are more decumbent to high traffic load compared with other places. This situation is called hot spot phenomenon. Accordingly, these hot spot nodes become constrained in terms of many issues and seem to be died fast. The performance of GFS becomes limited to these hot spot nodes. The whole MANET fails, as GFS fails to function well in this area. This paper takes an in depth look at the reason behind greedy failure. Lastly, the work concludes the most appropriate characteristics that should be consider for enhancing greedy scheme to be compatible with the unique features of MANET.
Highlights
The Mobile Ad Hoc Network (MANET) known as ad hoc wireless network appeared in the early 1970s [1]
This paper introduces a complete study of the problems behind Greedy Forwarding Strategy (GFS) failure
The Effects of Position Inaccuracy of Participating Nodes Due to its efficiency and scalability, Greedy algorithm used as basic mode of operation for most geographic routing protocols for MANET
Summary
The Mobile Ad Hoc Network (MANET) known as ad hoc wireless network appeared in the early 1970s [1]. In Mobile Ad hoc Networks, the communication between two wireless mobile nodes achieved through several number of hops that shapes the route between them. Based on the new features of MANETs, the routing protocols have new challenges to guarantee high performance. Those issues such as; limited bandwidth, link disconnected because of node mobility, limited power of wireless mobile nodes. Because of the new challenges, routing algorithms in Mobile ad hoc networks in need to solve those issues to achieve the desired performance in MANET [4].
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